4AB6:
reference: Structure of the regulatory domain of the LysR family regulator NMB2055 (MetR-like protein) from Neisseria meningitidis., Sainsbury S, Ren J, Saunders NJ, Stuart DI, Owens RJ, Acta Crystallogr Sect F Struct Biol Cryst Commun. 2012 Jul 1;68(Pt 7):730-7. Epub, 2012 Jun 22. PMID: 22750853

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